Weitere Beispiele werden automatisch zu den Stichwörtern zugeordnet - wir garantieren ihre Korrektheit nicht.
A lone pair can be used to form new bonds between molecules.
Since the nitrogen has a lone pair, it can do many reactions.
Lone pairs are also important for the shape of a molecule.
In the first case, the two electrons that do not make bonds are like a lone pair.
Group 14 lone pairs manifest themselves in triple bonds as well.
In the following molecule add the missing bonds and lone pairs.
One of these lone pairs links to the methyl group.
The central atom is sp2 hybridized with one lone pair.
The seventh lone pair must be placed on the nitrogen atom.
An argument involving lone pair orientation is advanced to explain this.
The 14 remaining electrons should initially be placed as 7 lone pairs.
The oxygen atom also has two lone pairs of electrons.
A lone pair is a group of two electrons that are not used in any bonds between atoms.
Because the lone pair is so high in energy however, sometimes phenol reacts too many times.
Another thing that surprised me was the lone pair of Sea Eagles.
The electrons in an n orbital are typically lone pairs.
In addition to the four ligands, sulfur also has one remaining lone pair.
For example many alkoxides use one of their three lone pairs to make a single bond to a metal center.
In such cases, there are two mathematically equivalent ways of representing lone pairs.
Lone pairs on a same atom want to be as far away from each other as possible.
When in doubt, lone pairs should be placed on more electronegative atoms first.
NH2 groups are highly stabilizing, apparently because of lone pair delocalization.
The lone pair on the nitrogen is not part of the aromatic pi system.
Lone pairs can make a contribution to a molecule's dipole moment.
This is due to greater availability of the nitrogen lone pair .
The unshared non-bonding pairs of electrons remain with the O atom.
However not all non-bonding pairs of electrons are considered by chemists to be lone pairs.
Examples are the transition metals where the non-bonding pairs do not influence molecular geometry and are said to be stereochemically inactive.
In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atom and is sometimes called a non-bonding pair.
For example, five balloons tied together adopt the trigonal bipyramidal geometry, just as do the five bonding pairs of a PCl molecule (AX) or the two bonding and three non-bonding pairs of a XeF molecule (AXE).
A molecule may be polar either as a result of polar bonds due to differences in electronegativity as described above, or as a result of an asymmetric arrangement of nonpolar covalent bonds and non-bonding pairs of electrons known as a full molecular orbital.